Abstract
A safe, simple, compact process generates high-purity hydrogen gas on demand from base-stabilized, aqueous solutions of sodium borohydride, NaBH 4, by using a ruthenium, Ru, catalyst. These NaBH 4-based solutions can store up to 7% hydrogen by weight. NaBH 4 solutions do not generate significant amounts of H 2 gas under ambient conditions. However, when in contact with Ru catalyst, NaBH 4 solutions spontaneously hydrolyze to form H 2 gas and sodium borate, a water-soluble, inert salt. When Ru catalyst is separated from the NaBH 4 solution, H 2 generation stops. This H 2 generator promises to be safer, have quicker response to H 2 demand, have a greater H 2 storage efficiency, and be more easily controlled than commonly used H 2 storage devices or generators. Nonflammable NaBH 4 solutions can be easily coupled to provide H 2 to internal combustion engines or fuel cell power systems.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
